It's simple - head to The Bookshelf and click on any title, name, or cover that takes your fancy.
Two fundamental questions are always answered: What's The Book, and Who Read It?
Beyond that, you'll find a scrapbook of information to explore - from "the author" to "the illustrator" to "the handwritten beef goulash recipe".
One last thing - please make sure you put the book back on the shelf where you found it.